LostCircuits has a good, indepth review of this Asus Intel board:
"The P4P800, based on Intel's i865PE chipset employs a simple, yet very effective trick to bypass the extra pipeline stages in the address and command decode path that ensure stable operation of the Springdale chipset at 200 / 800 MHz frequency. The top yield of the chipset can do without these pipeline stages and the separation between i875 and i865 is a somewhat arbitrarily drawn line between pass and fail under extreme conditions. Therefore the ASUS concept appears only a logical step to break some of the iron "Thou shalt not tamper with our pins" policies."
Full Review
Techseeker's Review of Gigabyte's GA-7NNXP:
"This blue beast is one feature packed board, not only does it have Firewire, GigaBit Ethernet, 4 DIMM slots, the board also has support for 10 ATA devices, 4 on nForce ATA133, 4 on the GigaRAID , and 2 S-ATA drives on the Silicon Image controller. It was stable in standard configuration and had no trouble running my XP 2500+ at XP3200+ 400FSB settings. The GA-7NNXP is also an excellent overclocker with stable FSB speeds in excess of 240MHz. The Dual BIOS is a useful feature and can prevent unnecessary RMAs."
Full Review